Varian 900-LC Series Liquid Chromatograph
If gases are to be plumbed from a remote storage area to the
instrument site, ensure that the local outlets are fitted with stop
valves, pressure gauges and suitable regulators which are easily
accessible to the instrument operator. The gas outlets must be
provided within 1.5 metres (5 feet) of the instrument.
1.3.4
Waste Container
The Varian 900-LC Series Liquid Chromatograph needs a drain
vessel for disposal of fluids and vapors from the system. Suitable
tubing is supplied with the LC system for use with most HPLC
solvents. Always check that your LC system tubing is compatible
with your solvents.
A chemically inert container, not glass or of a narrow-necked style,
to hold a minimum of 2 liters (4 pints) of waste must be provided by
the user. It should be placed where it is protected by the bench
and in full view of the operator.
1.3.5
Laboratory Conditions
The area selected for the operation of a Varian LC system
must
be free from drafts, corrosive atmospheres and vibration.
Sample preparation areas and materials storage facilities should
be located in a separate room.
The area should be a dust-free, low humidity environment.
Air-conditioning is strongly recommended for control of the
environment. For optimum analytical performance it is
recommended that the ambient temperature of the laboratory is
between 20 and 25 °C (68 and 77 °F).
1.3.6
Instrument Cooling Air Supply
The Varian 900-LC Series Liquid Chromatograph requires
clean,
dry, non-corrosive air for cooling
purposes
. This is supplied to
the instrument through an air supply vent located at the rear of the
instrument.
The air supply is used to cool the electronics of the instrument.
Several of these assemblies contain parts prone to corrosion. The
introduction of cooling air contaminated with high levels of acid,
vapors or other corrosive substances may cause damage to the
instrument.
Due to the corrosive nature of some work, it is recommended that
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Publication date: December 2007
